Skip to main content

Part of the book series: Biological Council

Abstract

Divalent cations have long been known to play a crucial part in the adhesive functions of cells. As long ago as 1894 Roux showed that media lacking Ca2+ ions aided the disaggregation of frog embryos. Herbst (1900) discovered that the blastomeres of echinoderm embryos fall apart in Ca2+ free seawater, though it is now known that the principal effect is dissolution of the hyaline capsule. Later workers frequently used chelating agents, most commonly sodium salts of ethylenediaminetetracetic acid (EDTA), to help the removal of divalent cation and bring about disaggregation. Its effectiveness has been demonstrated by Anderson (1953) on mammalian cells, by Zwilling (1954) on chick embryos, by Coman (1954) in adult rat liver, and by Curtis (1967) on amphibian embryos. Because EDTA chelates divalent cations in the preferential sequence

however, disaggregation in EDTA might be connected with chelation of less strongly bound cations, as well as Ca2+. EGTA which is potentially capable of distinguishing between Ca2+ and Mg2+, since the respective stability constants of Ca2+ and Mg2+ complexes are 1011 and 105, does not seem to have been utilized for this purpose.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 39.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 54.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Copyright information

© 1970 Palgrave Macmillan, a division of Macmillan Publishers Limited

About this chapter

Cite this chapter

Gingell, D., Garrod, D.R., Palmer, J.F. (1970). Divalent Cations and Cell Adhesion. In: Cuthbert, A.W. (eds) A Symposium on Calcium and Cellular Function. Biological Council. Palgrave Macmillan, London. https://doi.org/10.1007/978-1-349-00905-3_5

Download citation

Publish with us

Policies and ethics